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Elevator EXP

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Vincenzo View Drop Down
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    Posted: 03 Nov 2020 at 3:24pm
Hello, I notice that my Elevator EXP is buzzing. Raising the volume of the amplifier this hum comes out of the speakers, previously only with the Reflex M it did not happen.

Edited by Vincenzo - 03 Nov 2020 at 3:26pm
Amp. Musical Fidelity M3si, Turntables Project 2Xperience SB, Cartridges Ortofon Quintet black S, Reflex M, Elevator EXP.
Graham Slee Reflex M, Graham Slee Elevator EXP, Altoparlanti Focal Cobalt 816.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 04 Nov 2020 at 7:37am
Disconnect the turntable and set the Elevator EXP to 100 ohms load. If the buzz persists, please contact our service department (John C) by contact form, or on +44 1909 568739.

If the buzz stops, is there a "turntable earth wire?" Project instructions say, "An earthing wire may be connected to the screw terminal between the sockets if you encounter hum problems when using the record player."

The other end of the stripped earthing wire should be gripped under the "TT GROUND" thumbscrew on the Elevator EXP rear. This makes the arm and the Elevator EXP chassis have the same "potential." Otherwise, changes in potential between them due to radiated noise will be superimposed on the signal (buzz or hum).

The cable connecting the output of the turntable to the EXP must be electrically shielded. Each channel must be coaxial, which means the signal uses the centre core. The "return" uses the metal shield surrounding it. Some after-market cables declaring shielding sometimes mean mechanical shielding, not electrical shielding.

The arm tube is made from carbon fibre. This plastic offers zero shielding to the few inches of cartridge connection wire inside it. Therefore, if the turntable is within a magnetic field created by some external device (DECT phone usually, gaming console, or many things not necessarily in the same room), the magnetic field can be induced into the cartridge wires. Either move the turntable out of the way or move the producer of the offending magnetic field.

Please also check that the turntable's electronic motor speed control is not creating an offending magnetic field. With the turntable properly connected to the EXP (as above), remove power from the turntable.

The Elevator EXP must be connected to the Reflex M by an electrically shielded interconnect (two coaxial cables either in one sleeve or separate). Do not connect the "TT GROUND" of one to the "TT GROUND" of the other. The output of the Reflex M must be connected to your amplifier using the same type of electrically shielded interconnect.

The Elevator EXP increases sensitivity 13 times (22dB of gain) and so any noise source will sound louder.

Due to its sensitivity, the Elevator EXP is unsuitable for use near to high power radio transmitters, where the transmitted signal is so strong as to cause breakthrough, either of the program or the carrier frequency, which can make the Elevator EXP unstable in operation.

The following is a Google translation of the above into Italian.

Scollegare il giradischi e impostare l'EXP dell'elevatore su un carico di 100 ohm. Se il ronzio persiste, contattare il nostro servizio di assistenza (John C) tramite il modulo di contatto o al numero +44 1909 568739.

Se il ronzio si interrompe, c'è un "filo di terra del giradischi?" Le istruzioni del progetto dicono: "È possibile collegare un cavo di messa a terra al terminale a vite tra le prese se si verificano problemi di ronzio durante l'utilizzo del giradischi".

L'altra estremità del filo di messa a terra spelato deve essere afferrata sotto la vite a testa zigrinata "TT GROUND" sul retro dell'elevatore EXP. Questo fa sì che il braccio e il telaio dell'elevatore EXP abbiano lo stesso "potenziale". In caso contrario, le variazioni di potenziale tra di loro dovute al rumore irradiato si sovrapporranno al segnale (ronzio o ronzio).

Il cavo che collega l'uscita del giradischi all'EXP deve essere schermato elettricamente. Ogni canale deve essere coassiale, il che significa che il segnale utilizza il nucleo centrale. Il "ritorno" utilizza lo scudo metallico che lo circonda. Alcuni cavi after market che dichiarano schermatura a volte significano schermatura meccanica, non schermatura elettrica.

Il tubo del braccio è realizzato in fibra di carbonio. Questa plastica offre zero schermatura ai pochi centimetri di filo di collegamento della cartuccia al suo interno. Pertanto, se il giradischi si trova all'interno di un campo magnetico creato da un dispositivo esterno (solitamente un telefono DECT, una console di gioco o molte cose non necessariamente nella stessa stanza), il campo magnetico può essere indotto nei fili della cartuccia. O spostare il giradischi fuori mano o spostare il produttore del campo magnetico offensivo.

Verificare inoltre che il controllo elettronico della velocità del motore del giradischi non crei un campo magnetico offensivo. Con il giradischi collegato correttamente all'EXP (come sopra), scollegare l'alimentazione dal giradischi.

L'elevatore EXP deve essere collegato al Reflex M tramite un cavo di interconnessione schermato elettricamente (due cavi coassiali in una guaina o separati). Non collegare il "TT GROUND" di uno al "TT GROUND" dell'altro. L'uscita del Reflex M deve essere collegata al proprio amplificatore utilizzando lo stesso tipo di interconnessione schermata elettricamente.

L'elevatore EXP aumenta la sensibilità 13 volte (22dB di guadagno) e quindi qualsiasi sorgente di rumore suonerà più forte.

A causa della sua sensibilità, l'Elevator EXP non è adatto per l'uso vicino a trasmettitori radio ad alta potenza, dove il segnale trasmesso è così forte da causare sfondamenti, sia del programma che della frequenza portante, che possono rendere instabile l'Elevator EXP durante il funzionamento.
Not simple enough for Google-Bot to understand...
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Vincenzo View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Vincenzo Quote  Post ReplyReply Direct Link To This Post Posted: 04 Nov 2020 at 8:12am
All very clear, very kind as always.
I'll let you know the news.
Thanks.
Amp. Musical Fidelity M3si, Turntables Project 2Xperience SB, Cartridges Ortofon Quintet black S, Reflex M, Elevator EXP.
Graham Slee Reflex M, Graham Slee Elevator EXP, Altoparlanti Focal Cobalt 816.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Vincenzo Quote  Post ReplyReply Direct Link To This Post Posted: 05 Nov 2020 at 8:24pm
Hello, I think I've almost solved the buzzing problem.
I have moved the cordless phone away from the turntable and the rozio has diminished a lot, but it still hasn't completely disappeared. Maybe one day I will buy some Graham Slee cables but in the meantime I use the Atlas equator integra mklll which do not seem too bad.
Anyway thanks for the great improvement.
Amp. Musical Fidelity M3si, Turntables Project 2Xperience SB, Cartridges Ortofon Quintet black S, Reflex M, Elevator EXP.
Graham Slee Reflex M, Graham Slee Elevator EXP, Altoparlanti Focal Cobalt 816.
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Vincenzo Quote  Post ReplyReply Direct Link To This Post Posted: 09 Nov 2020 at 7:50pm
Hello, I was wondering who in the forum owns the Elevator EXP and with which cartridge? Thanks.

Edited by Vincenzo - 09 Nov 2020 at 7:52pm
Amp. Musical Fidelity M3si, Turntables Project 2Xperience SB, Cartridges Ortofon Quintet black S, Reflex M, Elevator EXP.
Graham Slee Reflex M, Graham Slee Elevator EXP, Altoparlanti Focal Cobalt 816.
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Aussie Mick Quote  Post ReplyReply Direct Link To This Post Posted: 09 Nov 2020 at 8:30pm
Hi Vincenzo,
   I used the EXP with the Rega Apheta 2 for three years before switching over to the Accession MC. I enjoyed it much more than two other MC stages I tried.
All the best,
Mick.
Rega RP8 - Apheta 2 - Accession MC Enigma PS -Solo ULDE (Focal Utopia) - Proprius - PMC Twenty5.22
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 09 Nov 2020 at 8:34pm
Bob does, with many cartridges. Go to http://musicandvinyl.blogspot.com/ and enter "elevator" in the search box. The results are videos of records played with a number of MCs into an Elevator EXP.
Not simple enough for Google-Bot to understand...
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